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Superconductivity - Coggle Diagram
Superconductivity
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Properties
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Transition temperature - a temperature, at which the material becomes superconductive
Meissner effect - coherent functioning of electrons does not allow to penetrate external magnetic field (Expulsion of external magnetic field)
The Josephson effect - an ability of supercurrent to flow between two pieces of superconductor separated by a thin layer of insulator
Josephson current is current emerging due to the Josephson effect
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Scientists
Heike Kamerlingh Onnes (1853-1926)
On April 8th, 1911, Onnes discovered that the resistance of mercury abruptly drops to zero below 4.2K
Discovered the phenomena of perfect conductivity, which he called - superconductivity (1911)
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Walther Meissner (1882-1974)
Discovered the Meissner Effect (Meissner–Ochsenfeld effect) in 1933.This phenomena means that superconductors expel relatively weak magnetic fields from their interior and are strongly diamagnetic.
Leo Cooper (1930)
Contributed to BCS theory by discovering in 1952 that electrons, which under normal conditions repel each other, are attracted to each other in superconductors, which was called a Cooper pair
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Lev Landau (1908-1968)
In 1950 formulates theory of superconductivity along with Vitalij Ginzburg (phenomenological Ginzburg-Landau theory of superconductivity)
Brian Josephson (1940)
Discovered in 1962 that a supercurrent can flow between two pieces of superconductor separated by a thin layer of insulator, which now is called the Josephson effect
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Application
Electricity
Superconducting wires
Wind energy
Medicine
T-Waves (terahertz waves)
Magnetic resonance imaging (MRI)
Transport
Maglev train (Magnetic levitation train)
SQUID (superconducting quantum interference device)
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